document.write( "Question 161446: what is the equation of the line described?
\n" ); document.write( "through (-7,1), perpendicular to 9x+4y=-67\r
\n" ); document.write( "\n" ); document.write( "*I'm guessing that I need to write the equation in slope-intercept form, but i'm not sure what to do with the points. I also know that both slopes should equal -1, just don't know how.
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Algebra.Com's Answer #118913 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
the PRODUCT of the slopes of perpendicular lines is -1\r
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\n" ); document.write( "\n" ); document.write( "9x+4y=-67 __ 4y=-9x-67 __ y=(-9/4)x-67/4 __ slope is -9/4\r
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\n" ); document.write( "\n" ); document.write( "so slope of new line is 4/9\r
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\n" ); document.write( "\n" ); document.write( "using point-slope __ y-1=(4/9)(x-(-7)) __ y-1=(4/9)x+28/9 __ y=(4/9)x+37/9
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